Ice cold archive storage

Introducing a new class of storage for data that’s ice cold  

We will be rolling out an entirely new archive class of Cloud Storage designed for long-term data retention. Bucket Policy Only for Cloud Storage (now in beta) lets you enforce Cloud Identity and Access Management (IAM) policies at the bucket level for consistent and uniform access control for your Cloud Storage buckets. V4 signature support for Cloud Storage

V4 signatures (now in beta) provides improved security and enables customers to access multiple object stores using the same application code.

Source: cloud.google.com